Patent 7546396 was granted and assigned to Harman Becker Automotive Systems on June, 2009 by the United States Patent and Trademark Office.
A data transfer interface is provided which enables a plurality of data processing devices to access a single data storage drive. The data processing device includes a switch connected to the plurality of data processing devices and the data storage drive. A control device drives the switch so that only one of the data processing devices accesses the data storage drive at a time.